Cisco IOS Cross-Site Request Forgery Vulnerability
n/a — n/a
Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on the 871 Integrated Services Router allow remote attackers to execute arbitrary commands via (1) a certain "show privilege" command to the /level/15/exec/- URI, and (2) a certain "alias exec" command to the /level/15/exec/-/configure/http URI. NOTE: some of these details are obtained from third party information.
8.1
33.7%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Published
- Sep 18, 2008
- Modified
- Sep 24, 2026
- Added to KEV
- Jul 13, 2026
- Federal patch due
- Jul 16, 2026
CISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2008-4128, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2008-4128 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2008-4128?
Multiple cross-site request forgery (CSRF) vulnerabilities in the HTTP Administration component in Cisco IOS 12.4 on the 871 Integrated Services Router allow remote attackers to execute arbitrary commands via (1) a certain "show privilege" command to the /level/15/exec/- URI, and (2) a certain "alias exec" command to the /level/15/exec/-/configure/http URI. NOTE: some of these details are obtained from third party information.
How severe is CVE-2008-4128?
CVE-2008-4128 has a CVSS base score of 8.1 out of 10 (CVSS 3.1).
Is CVE-2008-4128 actively exploited in the wild?
Yes. CVE-2008-4128 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jul 13, 2026, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2008-4128?
33.7% - meaning FIRST.org's EPSS model estimates a 33.7% probability this vulnerability will be exploited in the wild within 30 days (98% percentile among all scored CVEs).
What type of vulnerability is CVE-2008-4128?
CVE-2008-4128 is classified under CWE-352 (CWE-352 Cross-Site Request Forgery (CSRF)).
Cross-checked against
Impactr finds and proves whether CVE-2008-4128 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.